Phillips Elementary (Data source)
Source data for Phillips Elementary
2015
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 1386536 | 2384 | - | 2436 | = | -52 | * | (91 | / | 334) | = | -14.16766463 | ||
| 4 | 1386537 | 2428 | - | 2485 | = | -57 | * | (80 | / | 334) | = | -13.65269461 | ||
| 5 | 1386540 | 2447 | - | 2528 | = | -81 | * | (92 | / | 334) | = | -22.31137718 | ||
| 6 | 1386541 | 2479 | - | 2552 | = | -73 | * | (71 | / | 334) | = | -15.51796405 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2015 Difference From Standard for Phillips Elementary | -66 | ||||||||||||
2016
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 43674 | 2383 | - | 2436 | = | -53 | * | (76 | / | 303) | = | -13.29372935 | ||
| 4 | 43676 | 2443 | - | 2485 | = | -42 | * | (89 | / | 303) | = | -12.33663362 | ||
| 5 | 43679 | 2440 | - | 2528 | = | -88 | * | (74 | / | 303) | = | -21.49174914 | ||
| 6 | 43681 | 2499 | - | 2552 | = | -53 | * | (64 | / | 303) | = | -11.19471947 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2016 Difference From Standard for Phillips Elementary | -58 | ||||||||||||
2017
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 44750 | 2386 | - | 2436 | = | -50 | * | (68 | / | 283) | = | -12.01413425 | ||
| 4 | 44752 | 2455 | - | 2485 | = | -30 | * | (72 | / | 283) | = | -7.63250883 | ||
| 5 | 44753 | 2467 | - | 2528 | = | -61 | * | (81 | / | 283) | = | -17.45936394 | ||
| 6 | 44756 | 2488 | - | 2552 | = | -64 | * | (62 | / | 283) | = | -14.02120141 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2017 Difference From Standard for Phillips Elementary | -51 | ||||||||||||
2018
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 44763 | 2405 | - | 2436 | = | -31 | * | (62 | / | 198) | = | -9.7070707 | ||
| 4 | 44764 | 2424 | - | 2485 | = | -61 | * | (67 | / | 198) | = | -20.64141412 | ||
| 5 | 44767 | 2450 | - | 2528 | = | -78 | * | (69 | / | 198) | = | -27.18181814 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2018 Difference From Standard for Phillips Elementary | -58 | ||||||||||||
2019
| Step 1 | Step 2 | Step 3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Get Mean Scale Score from line numbers in this data file. | Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard | Multiply Distance From Standard by proportion of students in grade. | ||||||||||||
| Grade | Line number |
Mean Scale Score |
- | Scale Score: met min |
= | Distance from standard |
* | (Students tested in grade |
/ | Students) tested in school |
= | Weighted Distance From Standard |
||
| 3 | 44897 | 2398 | - | 2436 | = | -38 | * | (58 | / | 188) | = | -11.72340424 | ||
| 4 | 44898 | 2441 | - | 2485 | = | -44 | * | (66 | / | 188) | = | -15.44680848 | ||
| 5 | 44899 | 2438 | - | 2528 | = | -90 | * | (64 | / | 188) | = | -30.63829779 | ||
| Step 4 | SUM Weighted Distance From Standard to get 2019 Difference From Standard for Phillips Elementary | -58 | ||||||||||||
Last steps
Compute the average
| 2015 | 2016 | 2017 | 2018 | 2019 | Sum | Average |
|---|---|---|---|---|---|---|
| -66 | -58 | -51 | -58 | -58 | -291.0 | -58.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -43.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -73.2
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources:
| 2015 | 2016 | 2017 | 2018 | 2019 | |
|---|---|---|---|---|---|
| Percent | 86% | 85% | 87% | 83% | 79% |
| Data source | 2015 data file | 2016 data file | 2017 data file | 2018 data file | 2019 data file |
Napa Valley Unified school district | County of Napa
THIS chart shows what the school system "wants"
PLUS a "special" or "outside" cause of variation: wealth/poverty.
NOT what teachers want.
NOT what principals want.
NOT what parents want.
Phillips Elementary math proficiency
Zero+ meets standard.
67% less $meal
68% less $meal
69% less $meal
72% less $meal
66% less $meal
• Any result above zero is proficient; below is not proficient. • There is a 99% chance that results will remain the same in coming years, which is to say, between the Upper and Lower Control Limits (the gray lines). • The houses with the % of students receiving a Free or Reduced Price Meal is a measure of wealth/poverty.